Moreover, it is not requisite that all the witnesses should have been present during the whole transaction in question; the deposition of a single one is admissible, though it is necessary that there be more than two, and even three form but a sort of half-proof. All interrogatories, skilfully directed to extort the truth from the defendant or the witnesses by surprise, are strictly forbidden, as are also any suggestions of the answer desired, and every effort is made that the truth may flow naturally from the lips of the witness and without the influence of fear. In order to avoid hatred and terrorism, the names of the witnesses are not made known to the accused, but their motives of hostility to him are examined with the greatest care. False witnesses are punished with the utmost severity, and, when it becomes necessary, the accused and accusers are confronted with each other. If from poverty, or any other reason, the accused is found without an advocate or proctor, one is furnished for him. Finally, the appeal is a matter of right. It is taken directly to Rome, before the Congregation of the Holy Office, without passing through any intermediate metropolitan tribunal, and, during its pendency there, execution is usually stayed. Judgment is never rendered against any one upon mere presumptions; but only after full and unmistakable proof. We come now to notice the written regulations which may be called the skeleton of procedure. Save some variations in detail, they differ little from those of all contested cases before the different congregations. But in order fully to understand their advantages and disadvantages, the reader should understand not only the text of the law but the usages of its practices. For everywhere, at Rome as at Paris, unwritten traditions and judicial customs modify and temper the law, complete its deficiencies, and cause the inconveniences which, at first sight, it would seem to occasion, wholly to disappear. It is also impossible to base a serious comparison between the procedure of two countries upon a mere reading of their rules. Not only ought the two methods to vary according to the manners of the parties, the character of the tribunals, and the nature of their causes, but even two modes which are identical will often, under different circumstances, produce entirely different results. They accommodate themselves to the hand that wields them, and their value can be really appreciated only after long usage of them; so that the skilled practitioner alone is able to speak authoritatively of their value, of their endurance, and of the guarantees which they offer for the discovery of truth.